{"id":9557,"library":"bootstrapped","title":"Bootstrapped Percentile Bootstrap","description":"The `bootstrapped` library provides implementations of percentile-based bootstrap methods for statistical analysis, primarily focusing on confidence intervals. It is currently at version 0.0.2, with its last release in September 2017, indicating a stalled or abandoned release cadence.","status":"abandoned","version":"0.0.2","language":"python","source_language":"en","source_url":"https://github.com/facebookincubator/bootstrapped","tags":["statistics","bootstrap","data science","confidence intervals","facebook"],"install":[{"cmd":"pip install bootstrapped","lang":"bash","label":"Install stable version"}],"dependencies":[{"reason":"Core array operations and numerical computations.","package":"numpy","optional":false},{"reason":"Statistical functions and underlying numerical routines.","package":"scipy","optional":false}],"imports":[{"wrong":"import bootstrapped.bootstrap as bs","symbol":"bootstrap","correct":"import bootstrapped"}],"quickstart":{"code":"import numpy as np\nimport bootstrapped.bootstrap as bs\nimport bootstrapped.stats_functions as sf\n\n# Generate some data\ndata = np.random.normal(loc=100, scale=10, size=100)\n\n# Calculate 95% confidence interval for the mean\nlower_bound, upper_bound = bs.bootstrap(data, stat_func=sf.mean, alpha=0.05, num_iterations=1000)\n\nprint(f\"Mean 95% CI: [{lower_bound:.2f}, {upper_bound:.2f}]\")\n","lang":"python","description":"This quickstart demonstrates how to generate sample data and then compute a 95% confidence interval for the mean using the `bootstrap` function from `bootstrapped.bootstrap` and the `mean` statistic function from `bootstrapped.stats_functions`."},"warnings":[{"fix":"It is strongly recommended to migrate to actively maintained modern statistical libraries such as `scipy.stats.bootstrap` (available since SciPy 1.6.0) or `arch` for bootstrap methods, which offer similar or enhanced functionality with active development and broader compatibility.","message":"This library has not been updated since September 2017. It is highly likely to have compatibility issues with newer versions of Python (e.g., Python 3.8+), NumPy, or SciPy, and may contain unpatched security vulnerabilities.","severity":"breaking","affected_versions":"0.0.2 and earlier"},{"fix":"Ensure `num_iterations` is set to a sufficiently large number (e.g., 1000 or 10000) for reliable confidence intervals, understanding it controls the number of resamples rather than convergence of an iterative process.","message":"The `bootstrapped` package's `num_iterations` parameter refers to the number of bootstrap resamples, not actual iterations of an algorithm. A higher number typically yields more stable results for confidence intervals.","severity":"gotcha","affected_versions":"0.0.2"},{"fix":"Users should be aware that this project is not actively maintained or supported by Meta (Facebook) and should not be relied upon for production systems or critical analyses without significant independent validation.","message":"The library is maintained under `facebookincubator`, which implies it was an experimental project and not necessarily a fully supported product. This further emphasizes its abandoned status and lack of official support.","severity":"gotcha","affected_versions":"0.0.2"}],"env_vars":null,"search_vec":"'0.0.2':28 '2017':35 'abandon':40 'analysi':17 'base':12 'bootstrap':1,3,5,13,44 'cadenc':42 'confid':21,47 'current':25 'data':45 'facebook':49 'focus':19 'implement':8 'indic':36 'interv':22,48 'last':31 'librari':6 'method':14 'percentil':2,11 'percentile-bas':10 'primarili':18 'provid':7 'releas':32,41 'scienc':46 'septemb':34 'stall':38 'statist':16,43 'version':27","created_at":"2026-04-17T01:19:32.370466+00:00","updated_at":"2026-04-17T01:19:32.370466+00:00","problems":null,"ecosystem":"pypi","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":"0.0.2","cli_name":"","cli_version":null,"type":"library","homepage":null,"github":"https://github.com/facebookincubator/bootstrapped","docs":null,"changelog":null,"pypi":"https://pypi.org/project/bootstrapped/","npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["data"],"base_url":null,"auth_type":null,"provenance":{"verified_status":"passing","verified_at":"2026-06-30","last_verified":"2026-06-30","next_check":"2026-07-30","install_tag":null}}